CVE-2022-2320

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-09-01 · updated 2026-06-17
Weakness: CWE-787

Description

A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of ProcXkbSetDeviceInfo requests. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. This flaw allows an attacker to escalate privileges and execute arbitrary code in the context of root.

Affected products

xorg-x11-server: 21.1.0

References

https://github.com/freedesktop/xorg-xserver/commit/dd8caf39e9e15d8f302e54045dd08d8ebf1025dc
https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/938
https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/939
https://lists.freedesktop.org/archives/xorg-announce/2022-July/003192.html
https://security.gentoo.org/glsa/202210-30
https://security.netapp.com/advisory/ntap-20221104-0003/
https://www.zerodayinitiative.com/advisories/ZDI-22-963/
https://github.com/freedesktop/xorg-xserver/commit/dd8caf39e9e15d8f302e54045dd08d8ebf1025dc
https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/938
https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/939
https://lists.freedesktop.org/archives/xorg-announce/2022-July/003192.html
https://security.gentoo.org/glsa/202210-30

Get alerted when CVE-2022-2320 or the next vulnerability affects your stack